v2022.16

Client

• Rebasing to a container refspec has now been declared stable and no longer
  requires the --experimental flag.
• Include version in rpm-ostree status output even when deployed from a
  container.
• Improve container-related documentation.
• Prune previous container payloads during rebase.

Compose

• Support a new repovars experimental treefile key. This key feeds into the
  librepo URL variable substitution logic. This is useful for the case where the
  same repo files are used by multiple streams and e.g. the baseurl needs to
  be templated by more than just releasever and basearch.
• Support rpm-ostree compose image --label to directly add labels to the OCI
  image.
• Workaround a recent semanage bug causing the SELinux policy to be recompiled
  on client systems even when unneeded. If you've been using Fedora 37 before
  GA, your system may be unnecessarily carrying a customized SELinux policy.
  This is harmless (base policy updates still take effect) but less efficient.
  You can get back to the original policy by following
  these steps.
• Make container: true imply more appropriate defaults like selinux: false
  and tmp-is-dir: true.

Internals

• Update CI to Fedora 37.
• Fix some new compiler warnings.
• Port more Rust code from openat to cap-std
• Improve error-reporting in importer path.
• Stop using deprecated interrupt safety librpm API on rpm 4.18 and newer.
• Fix a memory leak in the core.

Colin Walters (27):
      tests/override-kernel: Adapt for Linux kernels newer than 5
      ci: Fix references to old FCOS location
      util: Fix `-fpermissive` warning
      Add version to status even for containers
      treefile: Make `container: true` opt-in to saner defaults
      build-sys: Don't delete systemd units in `make clean`
      Update to ostree-ext 0.9
      docs/container: Flesh out a bit more and tweak
      Stabilize container functionality
      docs/container: Explain you can upgrade too
      Always use merge commit for container deployments
      compose/image: Add `--label`
      Update to ostree-ext v0.9.1
      daemon: Query container image commit
      When rebasing, prune previous container by default
      composepost: Port a few bits to cap-std
      composepost: Port default target bits to cap-std
      composepost: Port remove files handling to cap-std
      composepost: Port script function to cap-std
      composepost: Port rpmdb symlinking to cap-std
      composepost: Port os-release handling to cap-std
      composepost: Port outer wrapper function to cap-std
      composepost: Port one test to cap-std
      composepost: Port directory size computation to cap-std
      composepost: Port altfiles mutation to cap-std
      build: Compile with rpm 4.18
      packaging/spec: Add a dummy changelog

Jonathan Lebon (11):
      libpriv/postprocess: work around semanage bug
      ci: Update for Fedora 37
      ci: Run "Build Integration Test Data" GHA privileged
      core: Plug leak in vars dir handling
      rust/extensions: Copy `directory` field to generated treefile
      app/compose: Factor out helper to set repos dir
      app/compose: Clear out vars dir
      treefile: Support `repovars` key
      Release 2022.16

Luca BRUNO (1):
      libpriv/importer: bubble up filepath errors